35results about How to "Control number" patented technology

The present invention provides a method for more easily producing a controlled-cluster-size noble-metal catalyst. This method comprises depositing a polynuclear complex comprising a plurality of organic polydentate ligands and a plurality of noble metal atoms on an oxide support, and then removing the organic polydentate ligands.

The present invention provides a method for preparing a biomedical metal alloy material with a multi-drug delivery system. A biomedical metal alloy material with a multi-drug delivery system according to the present invention is prepared by incorporating a therapeutic agent into a biodegradable material to prepare particles containing the therapeutic agent, treating the surface of the particles containing the therapeutic agent to have a charge opposite to the surface charge of a metal alloy material, and inducing an electrostatic interaction between the surface charges of the particles containing the therapeutic agent and the metal alloy material to immobilize the surface-treated particles containing the therapeutic agent on the surface of the metal alloy material.

The invention discloses a measuring method of an outfield wave front aberration of a large-aperture space optical system, and belongs to the technical field of advanced optical system manufacturing. The measuring method aims at solving the problem that the existing detection means cannot meet a measuring requirement of the outfield wave front aberration of the large-aperture space optical system. The measuring method comprises the steps that 1, a measuring condition is initialized, a four-dimensional adjustment rack and a small-aperture parallel light generator are placed in appropriate positions at the front of a to-be-measured optical system, the small-aperture parallel light generator is turned to a specified viewing field by auxiliary equipment, x-direction and y-direction rotating devices are locked dead, an optical parameter of the to-be-measured optical system, an aperture of small-aperture parallel light and the number of subapertures required by measuring are input to a control computer, and the control computer generates an initial position and a motion locus of the small-aperture parallel light generator according to an initial parameter; 2, a wave front slope is measured; and 3, the wave front aberration is fit. A wave surface slop can be measured point by point in a time-sharing manner, and a large-aperture parallel light tube is not required, so that the difficulty of the outfield wave front aberration of the system is reduced.

Methods and apparatus for controlling the number of ions to be analyzed in a mass analyzer are disclosed. Ions are accumulated over an injection time interval determined as a function of ion accumulation rate and a predetermined desired number of ions. Accumulation velocity represents the flow rate of ions from the ion source into the ion collector. Ions from the accumulated ions are introduced into a mass analyzer for analysis.

The invention discloses a single rotary combined gas explosion sound source, which belongs to the technical field of mine countermeasures. The gas explosion sound source includes a servo motor, a rotor, a stator housing, a piston and a piston cylinder; the cavity part of the rotor with a release hole is inserted into the interior of the stator, and the two ends of the piston are respectively located in the rotor and the piston cylinder, and the piston cylinder and the stator The shells are coaxially docked; the high-pressure gas inside the rotor will be released through the periodic opening and closing of the corresponding release holes on the rotor and stator, and a series of broadband oscillating sound wave pulses will be generated in the water; by adjusting the displacement of the piston in the rotor Control the number of ports opened by the rotor to adjust the intensity of the sound source; the rotor is driven by the servo motor to rotate, and when the release hole opened by the rotor coincides with the release hole of the stator, pulses of a specific frequency spectrum are generated, and the ports opened by the rotor are in continuous emission. Continuously changing to achieve smooth control of the spectrum. The invention can effectively simulate the physical field produced by the ship.

The invention discloses a sulfonyl chloride compound taking carbazole as a fluorogen and a preparation method and applications thereof, and relates to the technical field of alcohol and amine substance detection in the fields of environment, medicine, food and sanitation. Precursor compounds such as carbazole, N-bromo-succinimide, sodium methoxide, iodobenzene, chlorosulfonic acid and thionyl chloride are used as raw materials for preparing a new sulfonyl chloride compound taking the carbazole as a fluorescent matrix ring. The sulfonyl chloride compound disclosed by the invention can be used as a fluorescent molecular probe for detecting the alcohol and amine substances in the fields of environment, medicine, food and sanitation, and can also be used as a marking reagent for disease diagnosis and quality monitoring.

The invention relates to a post-casting process for alloy material pipe joints, which includes a workbench, a grinding device, a conveying device and a cleaning device. The right end is fixedly equipped with a cleaning device, and the grinding device includes a grinding tank, a rectangular scraper, a motor one, a rotating rod, an agitating rod, a grinding rod and a transmission frame. If the number of joints is too small or too many, the grinding efficiency or quality will be affected. Through the grinding device, the joints will move due to the force during the grinding process, so as to prevent the joints from accumulating, so as to completely polish the surface of the joints. The device further cleans the surface of the joint to achieve the purpose of completely removing the burrs and molding sand on the surface of the joint.

The invention relates to the technical field of networks and discloses a terminal access number control method. The method aims to solve the problem that due to the fact that an existing distributed device can not limit the terminal access number accurately, the terminal access number exceeds limitation. The method mainly comprises the steps that a forwarding plane periodically reads media access control MAC address numbers of a port, and informs the read MAC address numbers to a control plane; the control plane checks whether records exist in a forwarding table after extracting MAC addresses of messages, and judges whether the MAC address numbers of the port reach the limitation value; if yes, a control switch of the up-sending control plane is turned off when source MAC searching fails, and processing of the messages is stopped; if not, the control switch of the up-sending control plane is turned on when source MAC searching fails so that the control plane can process the messages. The invention discloses a terminal access number control system. According to the method and the system, the terminal access numbers of the port can be controlled accurately, impact on the control plane from the messages can be reduced, and processor resources of the control plane are saved.

The invention belongs to the field of asphalt modifiers, in particular to a styrene-butadiene latex and its preparation method and application. The preparation method provided by the present invention comprises the following steps: a) mixing emulsifier, molecular weight regulator, diffusing agent, free radical stabilizer, electrolyte and water to adjust the temperature, and when the temperature of the mixing system reaches 5-15°C, add the mixture to the mixing system Add butadiene, styrene, tertiary amine monomer and initiator to react; b) After the reaction is carried out for 4-6 hours, add a cross-linking agent to the reaction system, and then raise the temperature to 20-40°C to continue the reaction for 0.5-2 hours ; c) after the reaction, the obtained reaction product is mixed with an anti-aging agent and degassed to obtain styrene-butadiene latex. The method provided by the present invention can make the prepared styrene-butadiene latex have higher solids by adopting low-temperature two-stage polymerization, adding an appropriate amount of tertiary amine monomers to participate in copolymerization and adding an appropriate amount of organic matter containing active halogen groups as a crosslinking agent. content and excellent asphalt modification ability.

The invention discloses a processing method for a paging message and a corresponding access network device thereof. The processing method for the paging message comprises the following steps: receiving the paging message sent by a core network; determining whether a mobile station identity in the paging message is preserved if the system is overloaded; and discarding the paging message in case that the mobile station identity is preserved. With the application of the processing method for the paging message and the access network device thereof provided by the invention, when the system is overloaded, the paging message is determined whether to be a first paging message through the method that whether the mobile station identity in the paging message is preserved, and the paging message can be discarded when the message is not the first paging message. Therefore, the invention can effectively control the number of the paging messages, reduce the load of the base station subsystem, and ensure the stable operation and the business success ratio of the base station subsystem during high traffic peak hours.

The invention relates to a post-processing equipment for alloy material pipe joints after casting, which includes a workbench, a grinding device, a conveying device and a cleaning device. The right end is fixedly equipped with a cleaning device, and the grinding device includes a grinding tank, a rectangular scraper, a motor one, a rotating rod, an agitating rod, a grinding rod and a transmission frame. If the number of joints is too small or too many, the grinding efficiency or quality will be affected. Through the grinding device, the joints will move due to the force during the grinding process, so as to prevent the joints from accumulating, so as to completely polish the surface of the joints. The device further cleans the surface of the joint to achieve the purpose of completely removing the burrs and molding sand on the surface of the joint.

The invention relates to an advanced forecasting emission and measurement device in an underground engineering chromatofocusing induced polarization method. The advanced forecasting emission and measurement device structurally comprises an intelligent electrode, a shielding electrode and an electrode automatic control device. The electrode automatic control device comprises a decoder, an intelligent electrode switching circuit, an intelligent electrode switch circuit and a shielding electrode switch circuit. According to the advanced forecasting emission and measurement device, automatic switching between the emission function and the receiving function of the intelligent electrode is realized, and the intelligent electrode is controlled to realize automatic switching of electrode arrays according instructions defined by a user. Moreover, the number of shielding electrodes can be controlled so that the emission and receiving functions which are in high automation degree in the chromatofocusing induced polarization method are realized.

The present invention relates to a polycarbonate containing nonlinear optical chromophores, a synthesis method and an application thereof. According to the present invention, bischloroformate and nonlinear optical chromophores containing double hydroxyl groups are subjected to copolymerization so as to successfully introduce the nonlinear optical chromophore molecule into the polymer chain segment of the polycarbonate, and concurrently a bisphenol monomer is introduced to adjust the number of the nonlinear optical chromophore molecules in the chain segment so as to effectively prepare the suspension connection type polycarbonate electro-optic material containing a certain amount of the nonlinear optical chromophore molecules; after the polycarbonate containing the nonlinear optical chromophores is dissolved with an organic solvent and then is subjected to film coating, the maximum electro-optic coefficient of the prepared polarized electro-optic polymer film is 75 pm / V, wherein the prepared electro-optical material has a high glass transition temperature, such that the nonlinear optical chromophore molecules have good orientational stability in the material; and the polycarbonate containing the nonlinear optical chromophores has the following structure.